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Commit 39dd992a authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Clear cpu_{core,sibling}_map[] in smp_fill_in_sib_core_maps() 



When we hot-plug in new cpus, the core_id and proc_id of existing
cpus can change.  So in order to set the cpu groups correctly we
need to clear the maps out completely first.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b37d40d1

arch/sparc64/kernel/smp.c

+2 −0
Original line number Diff line number Diff line
@@ -1244,6 +1244,7 @@ void __devinit smp_fill_in_sib_core_maps(void) 
	for_each_possible_cpu(i) {

		unsigned int j;



		cpus_clear(cpu_core_map[i]);

		if (cpu_data(i).core_id == 0) {

			cpu_set(i, cpu_core_map[i]);

			continue;
@@ -1259,6 +1260,7 @@ void __devinit smp_fill_in_sib_core_maps(void) 
	for_each_possible_cpu(i) {

		unsigned int j;



		cpus_clear(cpu_sibling_map[i]);

		if (cpu_data(i).proc_id == -1) {

			cpu_set(i, cpu_sibling_map[i]);

			continue;